BT announces quantum cryptography breakthrough

Friday 16 October 2015 | 08:49 CET | News

BT announced that it smashed the record for securing high bandwidth data transmission in a trial with Toshiba Research Europe's Cambridge lab and Adva Optical Networking at BT's Adastral Park tech hub. The trial showed quantum cryptography in use on a system with a 200 Gbps bandwidth on a single fibre up to 100 km in length. The new system at Adastral Park filters the light to extract quantum signals from background light to make higher bandwidth transmissions possible and remove the need for a dedicated fibre.

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